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authorJesse Keating <jkeating@redhat.com>2010-07-29 16:46:31 -0700
committerJesse Keating <jkeating@redhat.com>2010-07-29 16:46:31 -0700
commit7a32965a104c3363e8505fe566531fcf071cced7 (patch)
treee45cb84552b2b022f49047bbddd9d887753c35bc /utrace-remove-use-of-kref_set.patch
parent64ba2e5ffde5f2418eb26c700cb0ab62b04e5013 (diff)
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Diffstat (limited to 'utrace-remove-use-of-kref_set.patch')
-rw-r--r--utrace-remove-use-of-kref_set.patch32
1 files changed, 32 insertions, 0 deletions
diff --git a/utrace-remove-use-of-kref_set.patch b/utrace-remove-use-of-kref_set.patch
new file mode 100644
index 000000000..f696f81fb
--- /dev/null
+++ b/utrace-remove-use-of-kref_set.patch
@@ -0,0 +1,32 @@
+From ad778e66100e4b76bab6b939e3d0c781da82d980 Mon Sep 17 00:00:00 2001
+From: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
+Date: Tue, 22 Jun 2010 14:09:30 +0100
+Subject: utrace: remove use of kref_set
+
+Unfortunatey db1afffa which removed kref_set did not anticipate
+anyone would actually like to use a kref which starts with a refcnt
+above 1. Replace kref_set in utrace with a kref_init + kref_get to
+immediately bump the reference count.
+
+Signed-off-by: Kyle McMartin <kyle@redhat.com>
+---
+ kernel/utrace.c | 3 ++-
+ 1 files changed, 2 insertions(+), 1 deletions(-)
+
+diff --git a/kernel/utrace.c b/kernel/utrace.c
+index f5a9e2c..cc864d5 100644
+--- a/kernel/utrace.c
++++ b/kernel/utrace.c
+@@ -304,7 +304,8 @@ struct utrace_engine *utrace_attach_task(
+ * Initialize the new engine structure. It starts out with two
+ * refs: one ref to return, and one ref for being attached.
+ */
+- kref_set(&engine->kref, 2);
++ kref_init(&engine->kref);
++ kref_get(&engine->kref);
+ engine->flags = 0;
+ engine->ops = ops;
+ engine->data = data;
+--
+1.7.0.1
+